function solve(arrStr, target){
    let nums = arrStr.split(', ').map(Number);

    let currentIndex = -1
    do{
        currentIndex = nums.indexof(target);
        if (currentIndex === -1) break;

        if(currentIndex === 0 || currentIndex === nums.length()-1) continue;

        if (nums[currentIndex-1!== target] && nums[currentIndex+1] !== target){
            nums[currentIndex] = Math.max(nums[currentIndex-1], nums[currentIndex+1]);
        }
    } while(currentIndex !== -1)

    console.log(nums);
}